Deprecate OpenTelemetry.Instrumentation.ElasticsearchClient

[Kielek]

Issue with OpenTelemetry.Instrumentation.ElasticsearchClient

List of all OpenTelemetry NuGet packages and version that you are using (e.g. OpenTelemetry 1.0.2):

N/A

Runtime version (e.g. net462, net48, netcoreapp3.1, net6.0 etc. You can find this information from the *.csproj file):

• All of them.

Is this a feature request or a bug?

• [ ] Feature Request
• [ ] Bug
• [x] Deprecation request

What is the expected behavior?

Package is deprecated, Code is removed from the repository. Information how to instrument package is added .AddSource("Elastic.Clients.Elasticsearch.ElasticsearchClient").

What is the actual behavior?

N/A

Additional Context

Consider to make the last release including changes. It should probably be released as 1.0.0-beta.4. Similar PR for MassTransit #788.

[Kielek]

@ejsmith what is your opinion on this?

[ejsmith]

I think that the 8.0 elasticsearch client just came out recently and it has extensive breaking changes that are going to force many people to stay on the older client for a long time. This package will be needed for a long while still IMO.